Tread rubber for all-steel snow tire and preparation method of tread rubber

A technology for snow tires and tread rubber, which is applied in the field of rubber, can solve the problems of falling blocks and low hardness of tread rubber, and achieve the effects of reducing heat generation, improving tear resistance, and improving flex resistance

Inactive Publication Date: 2019-10-18
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the tread rubber hardness of snow tires is lower than that of ordinary tires, and blocks will appear during use

Method used

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  • Tread rubber for all-steel snow tire and preparation method of tread rubber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of all-steel snow tire tread rubber, the addition of raw materials is calculated in parts by weight, comprising the following steps:

[0023] (1) One-stage mixing: 78 parts of natural rubber, 15 parts of ESBR, 8 parts of trans isoprene rubber, 41 parts of N115 carbon black, 0.3 parts of graphene oxide, 6 parts of HD165MP white carbon black, 0.8 parts of silane coupling agent Put Si69, 3 parts of phenol-modified DCPD resin, 3.5 parts of zinc oxide, and 2 parts of stearic acid into the internal mixer for mastication, the pressure of the top bolt is 5.5MPa, the rotor speed is 50r / min, and the glue discharge temperature is 160°C , the time is 160s, to obtain a section of mixed rubber;

[0024] (2) Two-stage mixing: Put the first-stage compound rubber obtained in step (1), 6 parts of N115 carbon black, 1.3 parts of antioxidant RD, 1.7 parts of antioxidant 4020, and 1 part of rubber protective wax into the internal mixer for mixing , the upper bolt press...

Embodiment 2

[0028] A preparation method of all-steel snow tire tread rubber, the addition of raw materials is calculated in parts by weight, comprising the following steps:

[0029] (1) One-stage mixing: 80 parts of natural rubber, 13 parts of SSBR, 7 parts of trans isoprene rubber, 20 parts of N115 carbon black, 20 parts of N134 carbon black, 0.35 parts of graphene oxide, 12 parts of HD165MP white carbon black, 1.2 parts of silane coupling agent Si69, 5 parts of phenol-modified DCPD resin, 3.5 parts of zinc oxide, and 2.5 parts of stearic acid are put into the internal mixer for masticating. 50r / min, the glue discharge temperature is 160°C, and the time is 160s, and a section of mixed rubber is obtained;

[0030] (2) Two-stage mixing: Put the first-stage compound rubber obtained in step (1), 5 parts of N134 carbon black, 1.2 parts of antioxidant RD, 1.6 parts of antioxidant 4020, and 1.2 parts of rubber protective wax into the internal mixer for mixing , the upper bolt pressure of the i...

Embodiment 3

[0034] A preparation method of all-steel snow tire tread rubber, the addition of raw materials is calculated in parts by weight, comprising the following steps:

[0035] (1) One-stage mixing: 70 parts of natural rubber, 20 parts of SSBR, 10 parts of trans isoprene rubber, 30 parts of N115 carbon black, 10 parts of N134 carbon black, 0.25 parts of graphene oxide, 10 parts of HD175MP white carbon black, 1 part of silane coupling agent Si69, 4 parts of phenol-modified DCPD resin, 4 parts of zinc oxide, and 3 parts of stearic acid were put into the internal mixer for mastication. 50r / min, the glue discharge temperature is 160°C, and the time is 160s, and a section of mixed rubber is obtained;

[0036] (2) Two-stage mixing: Put the first-stage compound rubber obtained in step (1), 6 parts of N115 carbon black, 1.2 parts of antioxidant RD, 1.8 parts of antioxidant 4020, and 1.2 parts of rubber protective wax into the internal mixer for mixing , the upper bolt pressure of the intern...

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Abstract

The invention belongs to the technical field of rubber, and particularly relates to tread rubber for an all-steel snow tire and a preparation method of the tread rubber. The method comprises the stepsof performing first-stage mixing on natural rubber, styrene-butadiene rubber, trans isoprene rubber, carbon black, graphene oxide, white carbon black, a silane coupling agent, an anti-aging agent, rubber protecting wax, modified DCPD resin, zinc oxide, stearic acid, an accelerator, sulfur and a scorch retarder by an internal mixer, performing second-stage mixing and performing third-stage mixingto prepare the tread rubber for the snow tire. The tread rubber prepared by deploying the usage amount of raw materials such as the modified DCPD resin, the graphite oxide material, the trans isoprenerubber and the anti-reversion agent can improve and enhance chipping resistance, wet skid resistance, aging resistance and reversion resistance of tread, thereby improving the safety performance andservice life of the snow tire.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to an all-steel snow tire tread rubber and a preparation method thereof. Background technique [0002] The design of all-steel snow tires is mainly concentrated on the tread block, and the tread has more fine grooves, which can effectively improve the grip and drainage performance of the tire on snowy roads and ensure the stability of the vehicle. Generally, the tread rubber hardness of snow tires is lower than that of ordinary tires, and blocks will appear during use. With the popularization and use of snow tires, the requirements for snow tires are getting higher and higher, and snow tires are required to have excellent anti-block performance and anti-wet skid performance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an all-steel snow tire tread rubber and a preparation method thereof for the above-menti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08L9/00C08L47/00C08K13/02C08K3/04C08K5/39B29B7/00B60C1/00
CPCB29B7/005B60C1/0016C08K2201/014C08L7/00C08L2205/02C08L2205/035C08L9/06C08L9/00C08L47/00C08K13/02C08K3/042C08K5/39
Inventor 周平赵江华崔玉叶朱凉伟
Owner JIANGSU GENERAL SCI TECH
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